Home / 10,546.92-14,556.51-7,142.40

Finding the Fourth Proportional to 10,546.92, 14,556.51 and 7,142.40

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Solution

The fourth proportional to 10,546.92, 14,556.51 and 7,142.40 is: 9,857.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,546.92 : 14,556.51 = 7,142.40 : x
  2. Step 2: Convert to fraction form
    10,546.92/14,556.51 = 7,142.40/x
  3. Step 3: Cross multiply
    10,546.92x = 14,556.51 × 7,142.40
  4. Step 4: Simplify right side
    10,546.92x = 103,968,417.02
  5. Step 5: Solve for x
    x = 103,968,417.02/10,546.92
  6. Step 6: Final answer
    x = 9,857.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.